Browse free open source C Browsers and projects below. Use the toggles on the left to filter open source C Browsers by OS, license, language, programming language, and project status.

  • Outgrown Windows Task Scheduler? Icon
    Outgrown Windows Task Scheduler?

    Free diagnostic identifies where your workflow is breaking down—with instant analysis of your scheduling environment.

    Windows Task Scheduler wasn't built for complex, cross-platform automation. Get a free diagnostic that shows exactly where things are failing and provides remediation recommendations. Interactive HTML report delivered in minutes.
    Download Free Tool
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 1
    Contiki is an open source, highly portable, networked, multi-tasking operating system for memory-constrained systems. Contiki current source code: https://github.com/contiki-os/contiki Contiki historical source code: https://github.com/adamdunkels/contiki-1.x
    Leader badge
    Downloads: 181 This Week
    Last Update:
    See Project
  • 2
    Advanced Onion Router
    Advanced Onion Router is a portable client for the OR network and is intended to be an improved alternative for Tor+Vidalia+Privoxy bundle for Windows users. Some of the improvements include UNICODE paths, support for HTTP and HTTPS proxy protocols on the same Socks4/Socks5 port with HTTP header filtering that generates fake identity-dependent headers every time the identity is changed (proxy chains are also supported), support for NTLM proxies, a User Interface that makes Tor's options and actions more accessible, local banlist for forbidden addresses, private identity isolation, a point-and-click process interceptor that can redirect connections from programs that don't support proxies, also giving them fake information about the local system and support for .onion addresses. Also, it can estimate AS paths for all circuits and prevent AS path intersections, it can restrict circuits to be built using only nodes from different countries, can change circuit lengths and more.
    Leader badge
    Downloads: 150 This Week
    Last Update:
    See Project
  • 3
    w3m is a pager and/or text-based browser. It can handle table, cookies, authentication, and almost everything except JavaScript.
    Downloads: 96 This Week
    Last Update:
    See Project
  • 4
    FreeWRL VRML/X3D browser
    FreeWRL is an Open Source, cross platform VRML2 and X3D compliant browser, with script, SAI and EAI support. Platforms supported: Linux and other Unix-style platforms; Mac OS/X; Windows. Support for mobile platforms (iOS, Android, QNX) is under development.
    Leader badge
    Downloads: 127 This Week
    Last Update:
    See Project
  • Atera - The depth of a full-stack IT platform, with the power of AI. Icon
    Atera - The depth of a full-stack IT platform, with the power of AI.

    Atera introduces your autonomous AI agent - Ensure operational efficiency at any scale with 24/7 autonomous IT support.

    Atera prioritizes security and compliance through robust protections that align with industry standards. Our AI-driven features were built on responsible AI principles and empower IT teams to work efficiently while maintaining trust and compliance.
    Learn More
  • 5
    PNG (Portable Network Graphics image format) and MNG (Multiple-image Network Graphics image and animation format) home sites
    Leader badge
    Downloads: 89 This Week
    Last Update:
    See Project
  • 6
    BlackBelt Privacy Tor/i2p+WASTE+VidVoIP

    BlackBelt Privacy Tor/i2p+WASTE+VidVoIP

    Browse on Tor/i2p, Anon p2p Chat / FileTx, Conf / Video VoIP

    Open Source - GPLv3 inc images. *** PLEASE NOTE: There are now 2 seperate versions here. *** One is Pre Firefox 57. The other is Post Firefox 57. *** For those providing mirrors, please enable your users to realize this. Vidalia Based, Tor as a Service Solution. MicroSip: enables FREE PC to PC video calling with no account sign-up and no middleman server. WASTE: enables FREE Conference VoIP, chat, file transfer and support. *** AI Powered *** Tor/i2p: enables safer browsing. Tor/i2p Profile: Browse over Tor/i2p on Firefox (Vanilla, ESR), Waterfox (Classic, New), Palemoon , LibreWolf and legacy CyberFox. As with all versions of Tor - do not rely on this for strong anonymity. A usability enhanced Privacy Pack. Use alongside Tor Browser Bundle. An installer, for : Vista 32/64, Win7 32/64, Win8 32/64, Win10 32/64, Win11, Linux (Wine)
    Downloads: 71 This Week
    Last Update:
    See Project
  • 7
    SPX

    SPX

    A simple & straight-to-the-point PHP profiling extension

    SPX, which stands for Simple Profiling eXtension, is just another profiling extension for PHP. It differentiates itself from other similar extensions as being totally free and confined to your infrastructure (i.e. no data leaks to a SaaS). Very simple to use: just set an environment variable (command line) or switch on a radio button (web request) to profile your script. Thus, you are free of manually instrumenting your code (Ctrl-C a long running command line script is even supported). Using a dedicated browser extension or command line launcher. Multi metrics capable: 22 are currently supported (various time & memory metrics, included files, objects in use, I/O...). Able to collect data without losing context. For example Xhprof (and potentially its forks) aggregates data per caller / callee pairs, which implies the loss of the full call stack and forbids timeline or Flamegraph based analysis.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    netrik is an advanced text-mode WWW browser, focusing on a convenient user interface.
    Downloads: 19 This Week
    Last Update:
    See Project
  • 9

    fbvlc

    Vlc web plugin based on FireBreath

    This project is not supported anymore. Please use WebChimera Plugin instead: http://WebChimera.org
    Leader badge
    Downloads: 49 This Week
    Last Update:
    See Project
  • Run applications fast and securely in a fully managed environment Icon
    Run applications fast and securely in a fully managed environment

    Cloud Run is a fully-managed compute platform that lets you run your code in a container directly on top of scalable infrastructure.

    Run frontend and backend services, batch jobs, deploy websites and applications, and queue processing workloads without the need to manage infrastructure.
    Try for free
  • 10
    D+ Browser
    A graphical web browser with an emphasis on security, performance, and portability.
    Leader badge
    Downloads: 42 This Week
    Last Update:
    See Project
  • 11

    Rikaisama (Legacy)

    Modification of Rikaichan with more features and customization options

    *** THIS ADD-ON IS NO LONGER SUPPORTED AND WILL NOT WORK WITH FIREFOX 57+ (however, it still works in Waterfox using a non-e10s window: "File > New Non-e10s Window") *** Rikaisama is a modification of the rikaichan Japanese-English popup dictionary that adds many features and customization options such as audio pronunciation, EPWING dictionary support, sanseido web dictionary support, word frequency, pitch accent, enhanced clipboard & save options, ability to create and add cards directly to an open Anki deck, "Super Sticky" mode, ability to remap shortcut keys, more fine-tuned startup options, and more. See http://rikaisama.sourceforge.net/ for more information. Supports Windows, Ubuntu, and newer versions of OSX.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 12
    LibreWeb Browser

    LibreWeb Browser

    Decentralized Web Browser

    LibreWeb is an open-source decentralized web browser, leveraging IPFS. What would you do differently; if you could reinvent The Internet in the 21st century? With all the knowledge and new technologies available today. I was inspired by Douglas Engelbart, Tim Berners-Lee, and Ted Nelson as well as projects like IPFS, Jekyll, ARPANET, and more. Everyone should be able to easily read and create a site/blog/news page and publish the content online (without minimal technical knowledge). Built-in easy-to-use editor (whenever you want to publish some content without programming language knowledge). Decentralized (no single-point of failure or censorship), like P2P, DHT, and IPFS. Versioning/revisions of content and documents (automatically solves broken 'links', that can't be happy anymore). Publisher users should be able to add additional information about the document/page, eg. title or path (similar in how Jekyll is using the YML format for meta data).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    Galeon is a GNOME web browser based on gecko (mozilla rendering engine). It's fast, it has a light interface and it is full standards compliant. Source code is available from: git://git.gnome.org/galeon
    Downloads: 9 This Week
    Last Update:
    See Project
  • 14
    bookmarksync is a tool used for synchronizing different bookmark files and types. It preserves current bookmark structures and sorts in new ones correctly in existing directorys or create new one if necessary. WORKING
    Downloads: 22 This Week
    Last Update:
    See Project
  • 15
    YPOPs! is an application which emulates a POP3/SMTP mail server and provides free POP3 and SMTP access to Yahoo! Mail. It does not depend on Yahoo's POP3/SMTP mail server. You can use a mail client of your choice!
    Downloads: 4 This Week
    Last Update:
    See Project
  • 16
    mod_gzip is an Internet Content Acceleration module for the popular Apache Web Server. It compresses the contents delivered to the client. There is no need to install any additional software on the client!
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    A fast and extremely lightweight graphical web browser for Windows, OS X, and Unix.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 18
    Puf is a command line web (HTTP) client. It is similar to GNU wget (and has similar options), but has the ability to do many downloads in parallel. Of course, it supports recursive fetching.
    Leader badge
    Downloads: 9 This Week
    Last Update:
    See Project
  • 19
    xombrero
    xombrero is a minimalists web browser. It strives to be vi-like for heavy keyboard users while maintaining traditional web browser behavior.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 20
    The cheetah web browser is a project that has been started to create a fast, light-weight, bloat-free, open source web browser for Linux and other free unix clones that is not dependant on any other browser and is not bound to a particular desktop.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 21
    This project is essentially a de-branded version of Mozilla Firefox, spun off from IceWeasel for Debian Linux distros.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 22
    Midori is a lightweight web browser.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 23
    retawq is a multi-threaded web browser for text terminals on Unix-like computers. It is fast, small, nicely configurable and comfortable; e.g. you can keep open as many "virtual windows" as you want and work simultaneously in two of them.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 24
    Software that will keep track of your favorite internet game servers such as Quake 3 &4, Enemy Territory, Call of Duty, Counter Strike & Warsow etc. Supports filtering and country locations...
    Downloads: 2 This Week
    Last Update:
    See Project
  • 25
    Cflow2vcg convert the result of the cflow utility in a VCG format. It offers the ability to view graphically the call-graph of sources, and import it in documentation.
    Downloads: 3 This Week
    Last Update:
    See Project